IOS如何判断沙箱已被更改（设备越狱）

Question

Our company has an finance app，now，The demand is that，In order to prevent data been tampered in jailbreak device, I thought of the two methods，

1. We must judge sandbox when we open the app, is there some ways to judge sandbox has been changed(i don't how to do).
2. Get ipa file in my code and do the hash operation，compare with server data（but I don't know how to get ipa file in my code.

Answer 1

Sandbox is a concept, it means only the app has the authority to do some allowed operation. I don't think there is a way to judge sandbox. But instead, you can judge your data wether it's been modified.

So it comes to the data encryption. You can focus on how to encrypt your core data which has much value.